Vacuum cleaner in which a dust bag or a cyclone dust collecting apparatus is selectively mounted

ABSTRACT

A vacuum cleaner, in which a dust bag or a cyclone dust collecting apparatus can be selectively mounted, includes a body case having a dust collecting chamber and a connecting hole formed at a side surface of the dust collecting chamber so that outside air enters through the connecting hole, a pair of securing brackets formed on an inner surface of the dust collecting chamber of the body case at both sides of the connecting hole in parallel with each other so that the cyclone dust collecting apparatus or the dust bag is selectively secured to the pair of securing brackets, and a body cover disposed at the body case and being opened and closed in order to open and close the dust collecting chamber.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit under 35 U.S.C. §119(a) from KoreanPatent Application No. 2008-20614 filed Mar. 05, 2008 in the KoreanIntellectual Property Office, the disclosure of which is incorporatedherein by reference in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present disclosure relates to a vacuum cleaner. More particularly,the present disclosure relates to a vacuum cleaner in which a dust bagor a cyclone dust collecting apparatus can be selectively mounted sothat a user can select the cyclone dust collecting apparatus or the dustbag as a dust collecting apparatus.

2. Description of the Related Art

Generally, a vacuum cleaner generates a suction force, draws incontaminants such as dust, hairs, etc. (hereinafter, referred to dust)with air using the suction force, separates dust from the drawn-in air,and discharges cleaned air to the outside, thereby performing a cleaningoperation.

Accordingly, the vacuum cleaner is provided with a dust collectingapparatus that can separate dust from the drawn-in air and collect theseparated dust. Dust bags, cyclone dust collecting apparatuses, etc. canbe used as the dust collecting apparatus.

However, the conventional vacuum cleaner is generally configured to useonly one kind of dust collecting apparatus. That is, the vacuum cleanerbeing configured to use a dust bag as the dust collecting apparatuscannot use the cyclone dust collecting apparatus. Contrarily, the vacuumcleaner being adapted to use the cyclone dust collecting apparatus asthe dust collecting apparatus cannot use the dust bag. Thus, theconventional vacuum cleaner is not configured so that users select anduse one of various different types of dust collecting apparatusesaccording to their needs. Therefore, the use of the vacuum cleaner canbe inconvenient.

SUMMARY OF THE INVENTION

The present disclosure has been developed in order to overcome the abovedrawbacks and other problems associated with the conventionalarrangement. An aspect of the present disclosure is to provide a vacuumcleaner in which a user can select one of a dust bag and a cyclone dustcollecting apparatus and mount it in the vacuum cleaner for collectionof dust therein.

The above aspect and/or other feature of the present disclosure cansubstantially be achieved by providing a vacuum cleaner in which a dustbag or a cyclone dust collecting apparatus can be selectively mounted.The vacuum cleaner includes a body case having a dust collecting chamberand a connecting hole formed at a side surface of the dust collectingchamber so that outside air enters through the connecting hole; a pairof securing brackets formed on an inner surface of the dust collectingchamber of the body case at both sides of the connecting hole inparallel with each other so that the cyclone dust collecting apparatusor the dust bag is selectively secured to the pair of securing brackets;and a body cover disposed at the body case, the body cover being openedand closed in order to open and close the dust collecting chamber.

The body case may include a sealing member disposed at the connectinghole of the dust collecting chamber; wherein when the cyclone dustcollecting apparatus is mounted in the dust collecting chamber, thesealing member contacts an air entering pipe of the cyclone dustcollecting apparatus, and when the dust bag is mounted in the dustcollecting chamber, the sealing member contacts a securing plate of thedust bag.

A front surface of the sealing member may be configured to form anobtuse angle with respect to a bottom surface of the dust collectingchamber.

The cyclone dust collecting apparatus may include a pair of hookingmembers, and when the cyclone dust collecting apparatus is inserted inthe dust collecting chamber, the pair of hooking members is configuredto be hooked on the pair of securing brackets disposed on the dustcollecting chamber.

The cyclone dust collecting apparatus may be adapted to draw in anddischarge the outside air via the lower portion thereof.

The cyclone dust collecting apparatus may include a cyclone bodyconfigured so that the outside air upwardly whirls and dust is separatedfrom the outside air; a dust collecting container configured to enclosearound the cyclone body, the dust collecting container to collect thedust separated in the cyclone body; an air entering pipe connected withthe lower portion of the cyclone body through the dust collectingcontainer, the air entering pipe to guide the outside air enteringthrough the connecting hole to the lower portion of the cyclone body;and an air-discharging pipe disposed at a center of the cyclone body,the air-discharging pipe to discharge the outside air having the dustremoved to the lower portion of the cyclone body; wherein the pair ofhooking members is disposed on the dust collecting container at bothsides of the air entering pipe.

An end of the air entering pipe may be formed to have an anglecorresponding to a front surface of the sealing member.

The cyclone dust collecting apparatus may include a filter memberdisposed at a side of the dust collecting container, and the filtermember is in fluid communication with the air-discharging pipe.

The cyclone dust collecting apparatus may include a cyclone cover thatis detachably disposed at an upper portion of the dust collectingcontainer.

The cyclone cover may include a cover handle disposed on a top surfaceof the cyclone cover.

The cyclone cover may be formed of a transparent material.

The cyclone dust collecting apparatus may be configured so that the dustseparated in the cyclone body is discharged into the dust collectingcontainer over a top end of the cyclone body.

The dust bag may include a securing plate being hooked on the pair ofsecuring brackets.

The body cover may include an accessory chamber.

The body cover may include an accessory chamber cover to cover theaccessory chamber.

Other objects, advantages and salient features of the disclosure willbecome apparent from the following detailed description, which, taken inconjunction with the annexed drawings, discloses preferred embodimentsof the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other aspects and advantages of the disclosure will becomeapparent and more readily appreciated from the following description ofthe exemplary embodiments, taken in conjunction with the accompanyingdrawings of which:

FIG. 1 is a perspective view illustrating a vacuum cleaner according toan exemplary embodiment of the present disclosure;

FIG. 2 is a perspective view illustrating a cleaner body of the vacuumcleaner of FIG. 1 from which an extension pipe assembly and a suctionnozzle are separated;

FIG. 3 is a partial sectional view illustrating the cleaner body of FIG.2 taken along a line 3-3 in FIG. 2 when a dust collecting apparatus isnot mounted in a dust collecting chamber of the cleaner body;

FIG. 4 is a partial perspective view illustrating a pair of securingbrackets disposed in the dust collecting chamber of the cleaner body ofFIG. 3;

FIG. 5 is a partial sectional view illustrating the cleaner body of FIG.3 when a cyclone dust collecting apparatus is mounted in the dustcollecting chamber of the cleaner body;

FIG. 6 is a perspective view illustrating the cyclone dust collectingapparatus being mounted in the cleaner body of FIG. 5;

FIG. 7 is a perspective view illustrating the cyclone dust collectingapparatus of FIG. 6 looking in a direction of arrow B in FIG. 6;

FIG. 8 is a partial sectional view illustrating the cleaner body of FIG.3 when a dust bag is mounted in the dust collecting chamber of thecleaner body; and

FIG. 9 is a partial perspective view illustrating a connection of asecuring plate of a dust bag and a pair of securing brackets beingdisposed in the dust collecting chamber of the cleaner body of FIG. 3.

Throughout the drawings, like reference numerals will be understood torefer to like parts, components and structures.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

Hereinafter, certain exemplary embodiments of the present disclosurewill be described in detail with reference to the accompanying drawings.

The matters defined in the description, such as a detailed constructionand elements thereof, are provided to assist in a comprehensiveunderstanding of the disclosure. Thus, it is apparent that the presentdisclosure may be carried out without those defined matters. Also,well-known functions or constructions are omitted to provide a clear andconcise description of exemplary embodiments of the present disclosure.

FIG. 1 is a perspective view illustrating a vacuum cleaner 1 accordingto an exemplary embodiment of the present disclosure. FIG. 2 is aperspective view illustrating a cleaner body 10 of the vacuum cleaner 1of FIG. 1 from which an extension pipe assembly 20 and a suction nozzle30 are separated. FIG. 3 is a partial sectional view illustrating thecleaner body 10 of FIG. 2 taken along a line 3-3 in FIG. 2 when a dustcollecting apparatus, such as a cyclone dust collecting apparatus 50 anda dust bag 70, is not mounted in a dust collecting chamber 12 of thecleaner body 10.

Referring to FIG. 1, the vacuum cleaner 1 according to an exemplaryembodiment of the present disclosure includes the cleaner body 10, theextension pipe assembly 20, and the suction nozzle 30.

Referring to FIGS. 2 and 3, the cleaner body 10 includes a body case 11.Inside the body case 11 are formed a dust collecting chamber 12 and amotor chamber 14.

The dust collecting chamber 12 is formed in a space where a dustcollecting apparatus, such as a cyclone dust collecting apparatus 50 anda dust bag 70, can be disposed. The dust collecting chamber 12 has anopen top end so that the dust collecting apparatus 50 and 70 can bevertically mounted into or separated from the dust collecting chamber12. A connecting hole 15 is formed at a first inner surface 12 a of thedust collecting chamber 12 corresponding to a front side of the bodycase 11. The connecting hole 15 allows the front side of the body case11 to be in fluid communication with the dust collecting chamber 12.

As illustrated in FIG. 4, a pair of securing brackets 60 is formed onthe first inner surface 12 a of the dust collecting chamber 12 of thebody case 11 at which the connecting hole 15 is formed. The pair ofsecuring brackets 60 is formed at both sides of the connecting hole 15in parallel with each other. The pair of securing brackets 60 is formedto fix a cyclone dust collecting apparatus 50 or a dust bag 70 that isdisposed inside the dust collecting chamber 12. In this exemplaryembodiment, the pair of securing brackets 60 is formed substantially inthe shape of the letter “L” as illustrated in FIG. 4. However, the shapeof the pair of securing brackets 60 as illustrated in FIG. 4 is only oneexample. In fact, as long as the securing brackets 60 can fix thecyclone dust collecting apparatus 50 and the dust bag 70 to the dustcollecting chamber 12, the securing brackets 60 can be formed in variousshapes.

A sealing member 61 is substantially formed in a hollow cylindricalshape and disposed in the connecting hole 15. When the cyclone dustcollecting apparatus 50 is mounted in the dust collecting chamber 12, asillustrated in FIG. 5, a front surface 61 a of the sealing member 61contacts an entering end 53 a of an air entering pipe 53 of the cyclonedust collecting apparatus 50. On the other hand, when the dust bag 70 ismounted in the dust collecting chamber 12, as illustrated in FIG. 8, thefront surface 61 a of the sealing member 61 contacts a securing plate 71of the dust bag 70. As a result, when the cyclone dust collectingapparatus 50 or the dust bag 70 is mounted in the dust collectingchamber 12, the sealing member 61 prevents air entering through theconnecting hole 15 from leaking. Accordingly, the sealing member 61 maybe formed of an elastic material such as a rubber, etc.

On the other hand, the front surface 61 a of the sealing member 61, asillustrated in FIG. 3, may be configured to form an obtuse angle D withrespect to a bottom surface 12 c of the dust collecting chamber 12. Ifthe front surface 61 a of the sealing member 61 forms an obtuse angle Dwith respect to the bottom surface 12 c of the dust collecting chamber12, it is convenient that the cyclone dust collecting apparatus 50 orthe dust bag 70 is vertically mounted in the dust collecting chamber 12.Also, as illustrated in FIG. 3, the sealing member 61 may have asecuring groove 61 b formed at a rear end of the sealing member 61. Thesecuring groove 61 b of the sealing member 61 is inserted in a securingprotrusion 62 that is formed in the first inner surface 12 a of the dustcollecting chamber 12 to correspond to the connecting hole 15. When thesecuring groove 61 b of the sealing member 61 is inserted in thesecuring protrusion 62 of the first inner surface 12 a of the dustcollecting chamber 12, the sealing member 61 is fixed to the first innersurface 12 a of the dust collecting chamber 12.

A mounting portion 16 to which the flexible hose 22 of the extensionpipe assembly 20 is coupled is formed around the connecting hole 15 ofthe front side of the body case 11.

An air-communicating hole 13 is formed in a side surface of the dustcollecting chamber 12, that is, a second inner surface 12 b of the dustcollecting chamber 12 that faces the connecting hole 15. Theair-communicating hole 13 is configured to allow the dust collectingchamber 12 to be in fluid communication with the motor chamber 14. Atthe air-communicating hole 13 may be disposed a motor filter (notillustrated) that filters air being discharged from the dust collectingapparatus 50 and 70. Inside the motor chamber 14 is disposed the motorassembly 14 a that generates a suction force. The motor assembly 14 acan use any conventional motor assembly usable with a vacuum cleaner.Therefore, a detailed description of the motor assembly 14 a is omitted.

The dust collecting apparatus, namely cyclone dust collecting apparatus50 and dust bag 70, is detachably mounted inside the dust collectingchamber 12. The vacuum cleaner 1 according to an exemplary embodiment ofthe present disclosure can use the cyclone dust collecting apparatus 50and the dust bag 70 as the dust collecting apparatus. That is, either ofthe cyclone dust collecting apparatus 50 or the dust bag 70 can bemounted inside the dust collecting chamber 12. Therefore, a user canmount the cyclone dust collecting apparatus 50 in the dust collectingchamber 12 of the body case 11. When the user's need changes, the usercan separate the cyclone dust collecting apparatus 50 from the dustcollecting chamber 12 of the body case 11, and then mount the dust bag70 therein instead of the cyclone dust collecting apparatus 50.

The cyclone dust collecting apparatus 50 that can be mounted in thevacuum cleaner 1 according to an exemplary embodiment of the presentdisclosure may be configured so that outside air enters via a lowerportion of the cyclone dust collecting apparatus 50, dust is separatedfrom the outside air, and then cleaned air is discharged via the lowerportion of the cyclone dust collecting apparatus 50. Also, the cyclonedust collecting apparatus 50 that can be mounted in the vacuum cleaner 1according to an exemplary embodiment of the present disclosure may beconfigured so that a first direction (F1 in FIG. 5) in which the outsideair enters the cyclone dust collecting apparatus 50 is the same as asecond direction (F5 in FIG. 5) in which the cleaned air is dischargedfrom the cyclone dust collecting apparatus 50. That is, the cyclone dustcollecting apparatus 50 may be configured so that the first direction ofthe outside air F1 entering the cyclone dust collecting apparatus 50 andthe second direction of the cleaned air F5 discharged from the cyclonedust collecting apparatus 50 become substantially parallel.

FIG. 5 illustrates the cyclone dust collecting apparatus 50 mounted inthe vacuum cleaner 1 according to an exemplary embodiment of the presentdisclosure. FIGS. 6 and 7 are a perspective view illustrating thecyclone dust collecting apparatus 50 being mounted in the vacuum cleaner1 of FIG. 5.

Referring to FIGS. 5 to 7, the cyclone dust collecting apparatus 50includes a cyclone body 51, a dust collecting container 52, the airentering pipe 53, and an air-discharging pipe 54.

The cyclone body 51 is formed substantially in a hollow cylindricalshape. A sloping surface 51 a is formed in a bottom of the cyclone body51 and allows the outside air entering via the air entering pipe 53 torise up while whirling. Therefore, while the outside air entering thecyclone body 51 rises up and whirls, dust is separated from the outsideair by a centrifugal force.

The dust collecting container 52 is formed to enclose the cyclone body51 and to be spaced apart from the cyclone body 51. The dust collectingcontainer 52 is formed to have a height higher than that of the cyclonebody 51. Therefore, the dust, that is separated by the centrifugal forceinside the cyclone body 51, is discharged over a top end of the cyclonebody 51 and collected in a dust collecting space 52 a between the dustcollecting container 52 and the cyclone body 51.

The air entering pipe 53 is disposed to connect with the lower portionof the cyclone body 51 through the dust collecting container 52.Therefore, the outside air entering through the connecting hole 15 isguided into the lower portion of the cyclone body 51 through the airentering pipe 53, and rises up and whirls inside the cyclone body 51.The air entering pipe 53, as illustrated in FIG. 6, is disposed so thatthe entering end 53 a thereof projects from an outer surface of the dustcollecting container 52. Also, the entering end 53 a of the air enteringpipe 53, as illustrated in FIG. 5, may be configured to form an obtuseangle E with respect to a bottom surface 50 a of the cyclone dustcollecting apparatus 50 or the bottom surface 12 c of the dustcollecting chamber 12. At this time, as illustrated in FIG. 5, the angleE of the entering end 53 a of the air entering pipe 53 may be formed tocorrespond to the inclined angle D of the front surface 61 a of thesealing member 61.

A pair of hooking members 58, as illustrated in FIG. 6, may be disposedon the dust collecting container 52 at both sides of the entering end 53a of the air entering pipe 53. The pair of hooking members 52 may beformed so that when the cyclone dust collecting apparatus 50 is insertedinto the dust collecting chamber 12 of the body case 11, the hookingmembers 58 are hooked on the pair of securing brackets 60 formed on thefirst inner surface 12 a of the dust collecting chamber 12. Therefore,each of the pair of hooking members 58, as illustrated in FIG. 6, may beformed substantially in the shape of the letter “L” corresponding to thepair of securing brackets 60. However, this does not limit the shape ofhooking members 58.

The air-discharging pipe 54 is disposed at an approximate center of thecyclone body 51, and discharges cleaned air, which has dust removed inthe cyclone body 51, to the lower portion of the cyclone body 51. Theair-discharging pipe 54 is formed substantially in a hollow cylindricalshape. A plurality of air holes 54 a through which the cleaned airhaving dust removed in the cyclone body 51 enters is formed at an upperportion of the air-discharging pipe 54. A bottom end of theair-discharging pipe 54 is connected with an air-discharging pathway 55being formed in the lower portion of the cyclone body 51. Theair-discharging pathway 55 is formed so that the cleaned air isdischarged in the same direction as the direction in which the air F1flows through the air entering pipe 53. That is, as illustrated in FIG.5, the entering end 53 a of the air entering pipe 53 is formed to facethe first inner surface 12 a of the dust collecting chamber 12, and adischarging end 55 a of the air-discharging pathway 55 is formed to facethe second inner surface 12 b of the dust collecting chamber 12.Therefore, the discharging end 55 a of the air-discharging pathway 55 isformed on a side surface opposite to the side surface of the cyclonedust collecting apparatus 50 on which the entering end 53 a of the airentering pipe 53 is formed.

A filter member 59 may be disposed between the discharging end 55 a ofthe air-discharging pathway 55 and the first inner surface 12 b of thedust collecting chamber 12. The filter member 59 filters off fine dustremaining in the cleaned air being discharged from the cyclone dustcollecting apparatus 50. The filter member 59, as illustrated in FIG. 7,may detachably be disposed at a side of the dust collecting container52.

A cyclone cover 56 may be disposed at a top end of the dust collectingcontainer 52 so as to be opened or closed. A backflow preventing dam 56a may be formed on a bottom surface of the cyclone cover 56. A coverhandle 56 b may be formed on a top surface of the cyclone cover 56. Whenthe cyclone cover 56 closes the top end of the dust collecting container52, the dust collecting space 52 a inside the dust collecting container52 is insulated from outside, and a gap 57 is formed between the top endof the cyclone body 51 and the backflow preventing dam 56 a disposed onthe bottom surface of the cyclone cover 56. The dust separated in thecyclone body 51 by the centrifugal force is discharged into the dustcollecting space 52 a through the gap 57 over the top end of the cyclonebody 51 in the direction of arrow F6 in FIG. 5.

The cover handle 56 b formed on the cyclone cover 56 may be used formounting the cyclone dust collecting apparatus 50 in the dust collectingchamber 12 of the body case 11 and separating the cyclone dustcollecting apparatus 50 from the dust collecting chamber 12. Also, thecover handle 56 b of the cyclone cover 56 may be used for mounting thecyclone cover 56 on the dust collecting container 52 or separating thecyclone cover 56 from the dust collecting container 52.

Furthermore, the cyclone cover 56 may be made of a transparent material.When the cyclone cover 56 is made of the transparent material, the usercan see the quantity of dust being collected in the dust collectingcontainer 52.

A body cover 17 is disposed at the body case 11 above the dustcollecting chamber 12 so as to be opened or closed. When the body cover17 is opened, the dust collecting chamber 12 is exposed. Therefore,after the user opens the body cover 17, the user can mount the cyclonedust collecting apparatus 50 or the dust bag 70 in the dust collectingchamber 12 of the body case 11 or separate the cyclone dust collectingapparatus 50 or the dust bag 70 from the dust collecting chamber 12.

Also, as illustrated in FIG. 3, an accessory chamber 41 may be formed inthe body cover 17. The accessory chamber 41 may receive variousaccessory suction nozzles (not illustrated) such as crevice cleaningtools, etc. that can clean specific places such as corners of a roomwhere the standard suction nozzle 30 cannot draw in dust except a broadsurface such as a floor. An accessory chamber cover 42 may be disposedat the body cover 17 above the accessory chamber 41 so as to be openedand closed. When the accessory chamber cover 42 is opened, the accessorychamber 41 is exposed. Therefore, when the accessory suction nozzle isrequired, the user can open the accessory chamber cover 42, pick out theaccessory suction nozzle, and use it to clean.

FIG. 8 illustrates the cleaner body 10 that has the dust bag 70 disposedin the dust collecting chamber 12 of the body case 11 thereof The dustbag 70 includes a bag portion 72 receiving dust and the securing plate71. The securing plate 71 is disposed at a leading end of the bagportion 72 and secured to the pair of securing brackets 60 of the bodycase 11. An entering opening 71 a is formed at the securing plate 71 tocorrespond the connecting hole 15 of the body case 11. The dust ladenoutside air enters the bag portion 72 through the entering opening 71 a.For mounting the dust bag 70 in the dust collecting chamber 12 of thebody case 11, as illustrated in FIG. 9, the securing plate 71 of thedust bag 70 is inserted between the pair of securing brackets 60disposed in the dust collecting chamber 12 of the body case 11. When thesecuring plate 71 of the dust bag 70 is disposed between the pair of thesecuring brackets 60, the securing plate 71 of the dust bag 70 contactsthe front surface 61 a of the sealing member 61 so that the outside airentering through the connecting hole 15 of the body case 11 does notleak between the securing plate 71 of the dust bag 70 and the frontsurface 61 a of the sealing member 61.

The extension pipe assembly 20 includes an extension pipe 21 and aflexible hose 22. An end of the flexible hose 22 is fixed to themounting portion 16 formed around the connecting hole 15 of the cleanerbody 10. The other end of the flexible hose 22 is connected with theextension pipe 21. An extension pipe handle 23 may be disposed betweenthe extension pipe 21 and the flexible hose 22.

The suction nozzle 30 is connected with an end of the extension pipe 21,and includes a dust suction opening (not illustrated) that draws inoutside air having dust from the surface to be cleaned. The outside airentering through the dust suction opening moves into the cleaner body 10through the extension pipe 21 and the flexible hose 22 of the extensionpipe assembly 20.

Hereinafter, operation of the vacuum cleaner 1 according to an exemplaryembodiment of the present disclosure having the structure as describedabove with reference to FIGS. 1, 5, and 8.

When mounting the cyclone dust collecting apparatus 50 in the cleanerbody 10, the user opens the body cover 17 and inserts the cyclone dustcollecting apparatus 50 into the dust collecting chamber 12 of the bodycase 11. At this time, the cyclone dust collecting apparatus 50 isinserted so that the entering end 53 a of the air entering pipe 53 ofthe cyclone dust collecting apparatus 50 faces the sealing member 61disposed on the first inner surface 12 a of the dust collecting chamber12 and the filter member 59 of the cyclone dust collecting apparatus 50faces the second inner surface 12 b of the dust collecting chamber 12.When the cyclone dust collecting apparatus 50 is mounted in the dustcollecting chamber 12, the entering end 53 a of the air entering pipe 53contacts the front surface 61 a of the sealing member 61 and the filtermember 59 faces the second inner surface 12 b of the dust collectingchamber 12. After the cyclone dust collecting apparatus 50 is mounted inthe dust collecting chamber 12, the body cover 17 is closed.

When turning on the vacuum cleaner 1, the motor assembly 14 a in themotor chamber 14 operates to generate the suction force. The suctionforce draws in dust laden outside air from the surface to be cleanedthrough the suction nozzle 30. The outside air being drawn-in into thesuction nozzle 30 enters the connecting hole 15 of the body case 11through the extension pipe 21 and the flexible hose 22. The outside airentering the connecting hole 15 moves into the lower portion of thecyclone body 51 through a hollow portion of the sealing member 61 andthe air entering pipe 53 of the cyclone dust collecting apparatus 50,and then, rises up while whirling (arrows F1 and F2 in FIG. 5). When theoutside air whirls upwardly, dust is separated form the outside air bythe centrifugal force. The separated dust rises up along the cyclonebody 51, and is discharged into the dust collecting space 52 a throughthe gap 57 between the backflow preventing dam 56 a and the top end ofthe cyclone body 51 (arrow F6 in FIG. 5).

Cleaned air having dust separated enters the air-discharging pipe 54through the plurality of air holes 54 a as arrow F3 illustrated in FIG.5. The cleaned air entering the air-discharging pipe 54 flows to thefilter member 59 through the air-discharging pathway 55 as arrows F4 andF5. The cleaned air that has fine dust filtered while passing the filtermember 59 enters the motor chamber 14. The cleaned air entering themotor chamber 14 passes the motor assembly 14 a, and then is dischargedto the outside of the cleaner body 10.

After opening the body cover 17, the user can check out how much dust iscollected in the dust collecting container 52 of the cyclone dustcollecting apparatus 50 through the transparent cyclone cover 56. Whenthe dust is filled up, the user grips the cover handle 56 b and takesout the cyclone dust collecting apparatus 50 from the dust collectingchamber 12. After that, the cyclone cover 56 is separated from the dustcollecting container 52 so that the top end of the dust collectingcontainer 52 is opened. Then, by turning downward the dust collectingcontainer 52 the dust collected in the dust collecting container 52 canbe easily thrown away.

After re-mounting the cyclone cover 56 on the top end of the dustcollecting container 52, the user can again insert and mount the cyclonedust collecting apparatus 50 in the dust collecting chamber 12 of thecleaner body 10.

When the user wants to use the dust bag 70 instead of the cyclone dustcollecting apparatus 50 as the dust collecting apparatus, the user canreplace the cyclone dust collecting apparatus 50 mounted in the cleanerbody 10 with the dust bag 70. Hereinafter, a process in which thecyclone dust collecting apparatus 50 mounted in the cleaner body 10 isreplaced with the dust bag 70 will be explained.

First, the user opens the body cover 17, and takes out the cyclone dustcollecting apparatus 50 mounted in the dust collecting chamber 12 of thebody case 11. At this time, usage of the cover handle 56 b disposed atthe cyclone cover 56 of the cyclone dust collecting apparatus 50 mayprovide an easy separation of the cyclone dust collecting apparatus 50.

Next, the dust bag 70 is mounted in the dust collecting chamber 12 ofthe body case 11. At this time, opposite side ends of the securing plate71 of the dust bag 70, as illustrated in FIG. 9, should be hooked on thepair of securing brackets 60 of the dust collecting chamber 12. So thesecuring plate 71 is fixed to the dust collecting chamber 12 of the bodycase 11 by the pair of securing brackets 60 and the sealing member 61and the entering opening 71 a of the securing plate 71 is in fluidcommunication with the connecting hole 15 of the body case 11. Aftermounting the dust bag 70 finishes, the body cover 17 is closed.

When turning on the vacuum cleaner 1 in this state, the motor assembly14 a disposed in the motor chamber 14 operates to generate the suctionforce. The suction force draws in outside air having dust from thesurface to be cleaned into the suction nozzle 30. The outside air beingdrawn-in into the suction nozzle 30 enters the connecting hole 15 of thebody case 11 through the extension pipe 21 and the flexible hose 22. Theoutside air entering the connecting hole 15 moves into the bag portion72 of the dust bag 70 through the entering opening 71 a of the securingplate 71 (arrow G1 in FIG. 8). While the outside air passes the dust bag70, dust being contained in the outside air remains in the bag portion72, and only cleaned air passes out through the bag portion 72 (arrowG2). The air being cleaned while passing the dust bag 70 enters themotor chamber 14 through the air communicating hole 13. So the cleanedair is discharged the outside of the cleaner body 10 via the motorchamber 14.

As described above, the vacuum cleaner 1 according to an exemplaryembodiment of the present disclosure has the dust collecting chamber 12of the body case 11 in which both the cyclone (lust collecting apparatus50 and the dust bag 70 can be disposed. Therefore, the user can mountanyone of the cyclone dust collecting apparatus 50 or the dust bag 70 inthe dust collecting chamber 12 of the body case 11 as desired. That is,the vacuum cleaner 1 according to an exemplary embodiment of the presentdisclosure is formed so that the cyclone dust collecting apparatus 50and the dust bag 70 can be used interchangeably with each other as thedust collecting apparatus.

With the vacuum cleaner according to an exemplary embodiment of thepresent disclosure having the structure as described above, the bodycase is formed in the structure that both the cyclone dust collectingapparatus and the dust bag can be mounted. Therefore, the user canselect and use either of the cyclone dust collecting apparatus or thedust bag as the dust collecting apparatus as desired.

Also, because the vacuum cleaner according to an exemplary embodiment ofthe present disclosure uses the cyclone dust collecting apparatus havinga structure allowing to draw in and discharge air through the lowerportion thereof as the dust collecting apparatus, it has dust collectingefficiency higher than that of the vacuum cleaner using a cyclone dustcollecting apparatus having other structure.

Also, because the vacuum cleaner according to an exemplary embodiment ofthe present disclosure uses the cyclone dust collecting apparatus havinga structure allowing the upper portion thereof to be opened and closed,when emptying dust collected in the cyclone dust collecting apparatus,an amount of dust blowing off is small and emptying dust is easy.

Furthermore, because the cyclone dust collecting apparatus being used inthe vacuum cleaner according to an exemplary embodiment of the presentdisclosure has the cover handle disposed at the upper portion thereof,it is easy that the cyclone dust collecting apparatus is mounted to andseparated from the body case.

Also, because the vacuum cleaner according to an exemplary embodiment ofthe present disclosure has the accessory chamber being formed in thebody cover, it is convenient to have the custody of the accessorysuction nozzles.

While the exemplary embodiments of the present disclosure have beendescribed, additional variations and modifications of the exemplaryembodiments may occur to those skilled in the art once they learn of thebasic inventive concepts. Therefore, it is intended that the appendedclaims shall be construed to include both the above exemplaryembodiments and all such variations and modifications that fall withinthe spirit and scope of the disclosure.

1. A vacuum cleaner in which a dust bag or a cyclone dust collectingapparatus can be selectively mounted, the vacuum cleaner comprising: abody case having a dust collecting chamber and a connecting hole formedat a side surface of the dust collecting chamber so that outside airenters through the connecting hole; a pair of securing brackets formedon an inner surface of the dust collecting chamber of the body case atboth sides of the connecting hole in parallel with each other so thatthe cyclone dust collecting apparatus or the dust bag can be selectivelysecured to the pair of securing brackets; and a body cover disposed atthe body case, the body cover being opened and closed in order to openand close the dust collecting chamber.
 2. The vacuum cleaner of claim 1,wherein the body case comprises a sealing member disposed at theconnecting hole of the dust collecting chamber; wherein when the cyclonedust collecting apparatus is mounted in the dust collecting chamber, thesealing member contacts an air entering pipe of the cyclone dustcollecting apparatus, and when the dust bag is mounted in the dustcollecting chamber, the sealing member contacts a securing plate of thedust bag.
 3. The vacuum cleaner of claim 2, wherein the sealing membercomprises a front surface configured to form an obtuse angle withrespect to a bottom surface of the dust collecting chamber.
 4. Thevacuum cleaner of claim 1, wherein the body cover comprises an accessorychamber.
 5. The vacuum cleaner of claim 14, wherein the body coverfurther comprises an accessory chamber cover to cover the accessorychamber.
 6. A vacuum cleaner comprising: a dust bag; a cyclone dustcollecting apparatus; a body case having a dust collecting chamber and aconnecting hole formed at a side surface of the dust collecting chamberso that outside air enters through the connecting hole; a pair ofsecuring brackets formed on an inner surface of the dust collectingchamber at sides of the connecting hole so that either the cyclone dustcollecting apparatus or the dust bag can be selectively secured to thepair of securing brackets; and a body cover disposed at the body case,the body cover being opened and closed in order to open and close thedust collecting chamber.
 7. The vacuum cleaner of claim 6, wherein thecyclone dust collecting apparatus comprises a pair of hooking members,and when the cyclone dust collecting apparatus is inserted in the dustcollecting chamber, the pair of hooking members is configured to behooked on the pair of securing brackets disposed on the dust collectingchamber.
 8. The vacuum cleaner of claim 7, wherein the cyclone dustcollecting apparatus is adapted to draw in and discharge the outside airvia a lower portion thereof.
 9. The vacuum cleaner of claim 8, whereinthe cyclone dust collecting apparatus comprises: a cyclone bodyconfigured so that the outside air upwardly whirls and dust is separatedfrom the outside air; a dust collecting container around the cyclonebody to collect the dust separated by the cyclone body; an air enteringpipe connected with the lower portion of the cyclone body through thedust collecting container, the air entering pipe to guide the outsideair entering through the connecting hole to the lower portion of thecyclone body; and an air-discharging pipe disposed at a center of thecyclone body, the air-discharging pipe to discharge the outside airhaving the dust removed.
 10. The vacuum cleaner of claim 9, wherein theair entering pipe has an end formed with an angle corresponding to afront surface of the sealing member.
 11. The vacuum cleaner of claim 10,wherein the cyclone dust collecting apparatus further comprises a filtermember disposed at a side of the dust collecting container, and thefilter member is in fluid communication with the air-discharging pipe.12. The vacuum cleaner of claim 10, wherein the cyclone dust collectingapparatus further comprises a cyclone cover that is detachably disposedat an upper portion of the dust collecting container.
 13. The vacuumcleaner of claim 12, wherein the cyclone cover comprises a cover handledisposed on a top surface of the cyclone cover.
 14. The vacuum cleanerof claim 12, wherein the cyclone cover is formed of a transparentmaterial.
 15. The vacuum cleaner of claim 6, wherein the cyclone dustcollecting apparatus is configured so that the dust separated in thecyclone body is discharged into the dust collecting container over a topend of the cyclone body.
 16. The vacuum cleaner of claim 6, wherein thedust bag comprises a securing plate being hooked on the pair of securingbrackets.